int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
args->pitch = align_pitch(args->width, args->bpp);
args->size = PAGE_ALIGN(args->pitch * args->height);
return msm_gem_new_handle(dev, file, args->size,
MSM_BO_SCANOUT | MSM_BO_WC, &args->handle);
}
struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
struct drm_mode_fb_cmd *mode_cmd, struct drm_gem_object *bo)
{
struct omap_framebuffer *omap_fb;
struct drm_framebuffer *fb = NULL;
int size, ret;
DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%d)",
dev, mode_cmd, mode_cmd->width, mode_cmd->height,
mode_cmd->bpp);
/* in case someone tries to feed us a completely bogus stride: */
mode_cmd->pitch = align_pitch(mode_cmd->pitch,
mode_cmd->width, mode_cmd->bpp);
omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL);
if (!omap_fb) {
dev_err(dev->dev, "could not allocate fb\n");
goto fail;
}
fb = &omap_fb->base;
ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs);
if (ret) {
dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
goto fail;
}
DBG("create: FB ID: %d (%p)", fb->base.id, fb);
size = PAGE_ALIGN(mode_cmd->pitch * mode_cmd->height);
if (bo) {
DBG("using existing %d byte buffer (needed %d)", bo->size, size);
if (size > bo->size) {
dev_err(dev->dev, "provided buffer object is too small!\n");
goto fail;
}
} else {
/* for convenience of all the various callers who don't want
* to be bothered to allocate their own buffer..
*/
union omap_gem_size gsize = {
.bytes = size,
};
DBG("allocating %d bytes for fb %d", size, dev->primary->index);
bo = omap_gem_new(dev, gsize, OMAP_BO_SCANOUT | OMAP_BO_WC);
if (!bo) {
dev_err(dev->dev, "failed to allocate buffer object\n");
goto fail;
}
}
omap_fb->bo = bo;
omap_fb->size = size;
if (omap_gem_get_paddr(bo, &omap_fb->paddr, true)) {
dev_err(dev->dev, "could not map (paddr)!\n");
goto fail;
}
drm_helper_mode_fill_fb_struct(fb, mode_cmd);
return fb;
fail:
if (fb) {
omap_framebuffer_destroy(fb);
}
return NULL;
}
